The term 'PASSES ON' can be described by three crossword solutions: RELAYS (6 letters), DIES (4 letters), and GIVESUPTHEGHOST (15 letters). Relaying is the act of passing something on to another person, such as a message or an object. Dying is the act of ceasing to live, and giving up the ghost is an idiom meaning to die. Therefore, all three solutions describe the concept of passing on in some way.